Jacob Meuser wrote:
> On Tue, Apr 07, 2009 at 07:30:52PM +0200, Dirk Mast wrote:
>> Christian Weisgerber wrote:
>>
>> > Dirk Mast <condo...@gmail.com> wrote:
>> >
>> >> perhaps this is just some stupid "where is the unmute button thing",
>> >> but I don't get it working (no sound with aucat started or the other
>> >> way).
>> >>
>> >> azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x02:
>> >> apic 2 int 22 (irq 14)
>> >> azalia0: codecs: Realtek ALC885
>> >
>> >> inputs.usingdac=0203040525 [ 0203040525 06 ]
>> >
>> > You need to switch to the "digital" DAC group:
>> > inputs.usingdac=06
>> >
>> > (No, this is not obvious unless you are sitting there with the codec
>> > datasheet and the driver source.)
>> >
>>
>> Hi thank you, this works perfectly.
>>
>> Perhaps this should be documented somewhere, since it's really not
>> obvious. Maybe in azalia(4) caveats, or in a more obvious mixerctl knob.
>
> yeah, 'inputs.usingdac' is rather undescriptive. at least now there
> are only two choices though (basically, analog or digital), as opposed
> to having basically arbitrary "dac groups", which often meant each
> dac in a separate group.
>
> I'll get around to this, eventually. just too busy with "real life"
> atm.
>
Yeah, thank you.
Auvia has this boolean outputs.spdif on/off.
If (I'm not sure about this) all azalias would have a structure like this:
several mixers for analog out and one mixer for digital out,
maybe azalia.c
/* if the codec has multiple DAC groups, create "inputs.usingdac" */
if (this->dacs.ngroups > 1) {
MIXER_REG_PROLOG;
strlcpy(d->label.name, "usingdac", sizeof(d->label.name));
could be changed in a way that this doesn't create two groups of DACs
but more an on/off state.
But I guess this would only work if dacs.ngroups = 2.
(Seeing that i goes up to 32 I doubt that is the case...)
I think another way would be if azalia could sense a plugged cable,
like it can do with headphones, that signal could then be used to
toggle on/off.
